PlaySudoku.us
Expert · Puzzle #437
2
4
8
9
6
3
9
2
1
9
7
2
8
4
5
3
3
9
9
8
1
6
7
5
6
4
The longest Sudoku solving session in a competitive setting lasted over 8 hours — an endurance format.
The longest Sudoku solving session in a competitive setting lasted over 8 hours — an endurance format.
"No great mind has ever existed without a touch of madness." — Aristotle
"No great mind has ever existed without a touch of madness." — Aristotle